Dg Shipping — complaint

Respected sir, i sandip sebastine gomes from kolkata have registered myself for basic stcw course in kolkata itself. I did my class on 9th and 10th of sep, and on 10th while coming home i met with a bus accident n hav badly injured my leg, n go through sum medication n proper rest. For this reason i hav informed my stcw institute n requested them to give a leave for a day n dat i might join them again on da next day but they are not allowing me to rejoin again n not even listening my request. And now they are not refunding my money back which i have deposited them on the first day of my joining on 9th sep. Plz help me out to get my money back so that i can find for another institute to complete my course because my joining is on 8th of october 2019.